Date   
Re: uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Mike
 

Ian,

 Any chance of including the hex files so we can just upload with Xloader?

Thanks!

Mike WA3O

Re: ubitx AGC?

Glenn
 

I'm thinking along the same lines.  I built a Mic amp version using the SSM2167 and thought it might work also for the Receiver. It's essentially the Sch seen on ebay but added a level pot on the output side.
glenn
vk3pe


Re: uBITX wiki

KD8CGH
 

It's the Wiki link on the bottom of the left hand side list of links on every groups.io page.
Click uBitx, then mods or software

    Bob
        KD8CGH

Re: Professional Programmers

Dimitar Pavlov
 

Hi,  James

I'm ready to help You.
If need, open my portfolio in github.com/LZ1DPN

73! LZ1DPN


----------------------------------------
James Lawrie 4:06 am   #41302  
Ive been on this group for awhile now and noticed posts from others in past that they were professional programmers and such. 

If this is true and you are proficient at programming for PIC, ATMEL, MSP430 series and or DSP MPUs using C or Assembly I would like to discuss a plan with you for a project I need help with that will be of benefit to everyone on this site. I can pay for your services but in the end it will be Open Software. I’ll even provide the parts, please let me know.

People might like a better option than what is already here.

Thanks,

Re: uBITX rotary enconder

Michael Hagen
 

Would probably have to use the 2 interrupts to read the encoder.  Do the frequency change in the interrupt, not set flag and process in main code.

I did that with the regular (less pulses) encoder on my BitX.  But it depends on how fast things go and length of code in interrupt.


73's

Mike, WA6ISP


On 2/6/2018 11:56 AM, Jim Sheldon wrote:
Jose,
It will not work right.  I have one and I connected it to my Raduino to actually test it (using my home made test set).  At 400 pulses per revolution of the shat, it sends pulses to the Raduino many times too fast and you have to turn the shaft very very slow to get it to keep from jumping digits forward and backward.  It has open collector outputs and the internal pull up from the Nano does not give enough current to make the encoders output transistors work properly.
If you try to connect one of these to the uBITX you will not be very happy.  Save your money.

Jim, W0EB

-- 
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID  "MotDog@..."
Mike@...

Re: uBITX rotary enconder

Jim Sheldon
 

Jose,
It will not work right.  I have one and I connected it to my Raduino to actually test it (using my home made test set).  At 400 pulses per revolution of the shat, it sends pulses to the Raduino many times too fast and you have to turn the shaft very very slow to get it to keep from jumping digits forward and backward.  It has open collector outputs and the internal pull up from the Nano does not give enough current to make the encoders output transistors work properly.
If you try to connect one of these to the uBITX you will not be very happy.  Save your money.

Jim, W0EB

Re: uBITX wiki

M Garza <mgarza896@...>
 

On Feb 6, 2018 12:16 PM, "Roy Appleton" <twelveoclockhigh@...> wrote:
Link?

Roy
WA0YMH

On Feb 6, 2018 12:10 PM, "KD8CGH" <rkayakr@...> wrote:
I've been adding to the uBitx Wiki as a way to find posts on mods and software. I urge software and hardware mods authors to keep the wiki current and for others to populate the trouble shooting wiki. If we can keep the wiki current not only can we find useful topics, but we can reduce people asking the same questions over and over.
      Bob
         KD8CGH

Re: Professional Programmers

Don WB4AFP
 

I would be interested.  I have a lot of experience with all the above, and am currently retired.  I would welcome an opportunity to earn enough to fund my own projects.  Social security doesn't cover anywhere near all the projects I would like to pursue (or buy the tools all guys lust for, like a spetrum analyzer.)

Don Hyde, WB4AFP

Re: uBITX wiki

Roy Appleton
 

Link?

Roy
WA0YMH

On Feb 6, 2018 12:10 PM, "KD8CGH" <rkayakr@...> wrote:
I've been adding to the uBitx Wiki as a way to find posts on mods and software. I urge software and hardware mods authors to keep the wiki current and for others to populate the trouble shooting wiki. If we can keep the wiki current not only can we find useful topics, but we can reduce people asking the same questions over and over.
      Bob
         KD8CGH

uBITX wiki

KD8CGH
 

I've been adding to the uBitx Wiki as a way to find posts on mods and software. I urge software and hardware mods authors to keep the wiki current and for others to populate the trouble shooting wiki. If we can keep the wiki current not only can we find useful topics, but we can reduce people asking the same questions over and over.
      Bob
         KD8CGH

Re: bitx 40 cat and digital modes

Joe Puma
 

I personally haven’t tried the cat functions yet but I have been following the guy who made that addition in this group. I sold my bitx40 but I am waiting for a Ubitx to try it out with. 

Joe
KD2NFC



On Feb 6, 2018, at 9:59 AM, rekuehn@... wrote:

Thanks for the reply Joe. 

What version of the firmware you are using with CAT support, or is it your own? I see there is a github repository that uses a modified version of Allard's 1.24 firmware: https://github.com/ggibby1/BitX40-1.24-FT857d, that claims to have added support, but I haven't given it a try yet.

Ralph
N9WTX

Re: uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

M Garza <mgarza896@...>
 

Here is the .35 release:

Marco - KG5PRT

On Tue, Feb 6, 2018 at 9:36 AM, Philip <philip.g7jur@...> wrote:
https://github.com/phdlee/ubitx


Re: Diy oscilloscope #parts

Jerry Gaffke
 

A voltage divider formed by a couple series resistors to ground placed on the signal of interest
can be used to reduce the incoming voltage.  With that, the AD8307 could easily deal with higher RF levels. 
 

On Tue, Feb 6, 2018 at 07:54 am, Jerry Gaffke wrote:
The AD8307 based probes can be used directly for sniffing out low level RF if all you have is a DVM.

Re: Diy oscilloscope #parts

Jerry Gaffke
 

That could work fine as a high impedance probe for use with an oscilloscope or spectrum analyzer.
To use it with a DVM you will need to add a diode RF probe or similar at the output,
as what it sends out is an RF signal with the voltage 10x what it sees at the input (20dB).

The AD8307 based probes can be used directly for sniffing out low level RF if all you have is a DVM.

I haven't used any of those ebay probes, have no idea how well they work.



On Mon, Feb 5, 2018 at 09:51 pm, Joe Puma wrote:
I purchased this one. My radio tech manual shows test points up to 8v so I think this probe should cover it. The other one said 3v input max. 
 

Re: ubitx AGC?

Arvo W0VRA
 

On Mon, Dec 11, 2017 at 03:48 am, Weddig, Henning-Christof wrote:
use an opamp with a gain of 10 (20 dB) and an audio AGC system using a SSM2166.
I am working on something similar for the microphone side with a SSM2167, and am doing a lot of thinking about how to do that on the RX side.  Someone recently used a programmable TI audio amp chip for compression and limiting.  I was thinking of using the SSM2167 in a similar way, and leaving the stock µB audio amp in place.

Re: bitx 40 cat and digital modes

R. Kuehn
 

Thanks for the reply Joe. 

What version of the firmware you are using with CAT support, or is it your own? I see there is a github repository that uses a modified version of Allard's 1.24 firmware: https://github.com/ggibby1/BitX40-1.24-FT857d, that claims to have added support, but I haven't given it a try yet.

Ralph
N9WTX

Re: uBITX rotary enconder

Jim Sheldon
 

Jose,
I have one of those and it outputs 400 pulses/revolution.  This may present problems for the software to read properly as the standard uBITX encoder puts out about 24 pulses/revolution.  The software to read the encoder would have to be changed to make that optical one work right.

Jim - W0EB

Re: uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Je
 


 Hi, all!

A link from where to download version 0.35, please! I found only 0.33!

Regards, Emil

W0EB/W2CTX Latest uBITX software release #ubitx

Jim Sheldon
 

This software is for the original uBITX Raduino with a standard (NOT the I2C) display.
The zip file contains a complete, illustrated manual in PDF format that contains
detailed instructions on implementing this version of the software.


We have totally restructured the menu to make it much easier to use.  The Nano's CPU cycle usage has been optimized for vastly better CW (a minor front panel wiring change is necessary to use this software).  Split is working (you do NOT have to be in transmit to change the transmitter's frequency) and though not available yet CAT is being worked on. Not promising CAT anytime soon but we're trying to implement it and keep CW working right.  (Not an easy task with a Nano but we want to keep from having to change out the Nano for some bigger card). Due to an easy programming trick, the keyer's dash paddle AND the Hand Key/external keyer connection has been moved to the same wire as the SSB PTT on the Raduino's digital connector (the orange wire).  This is possible since we don't normally use the CW key or paddles when in SSB mode and we don't use PTT when in CW mode.  The menu item CW:Key or CW:Pdl selects whether or not the line is used for the hand key or dash paddle.  This requires a minor wiring change and either a short adapter cable to be built for the hand key/external keyer or a separate hand key jack be added.  Either way it's an easy mod.  This change gives the analog A7 input back to the guys wanting it for an "S" meter or power/swr metering.  The blue wire (A6) remains as the dot input.  Since we don't have to select a specific threshold voltage on A6 for dot/dash/hand key and just determine key up or key down, the 2.2K and 10K resistors are no longer needed and the CW paddles work MUCH better. 

I posted the ubitx_V2_00R.zip file in the files section yesterday but there is so much stuff there that I'm posting the software again here to make it easier to locate for those who wish to use it.  Feedback is always appreciated and we hope you find the program useful. 
Jim Sheldon - W0EB and Ron Pfeiffer - W2CTX

uBITX rotary enconder

Jose Matos
 

Hi DR fellows
Just asking if anyone is thinking to change the rotary encoder of the uBITX to an optical encoder due
the not good quality of the uBITX encoder. 
can it is possible?
I found this on ebay: https://www.ebay.es/itm/Rotary-Encoder-400P-R-6mm-Incremental-Optical-Shaft-Working-Measurement-5-24V-SH/252550089532?hash=item3acd288b3c:g:uVsAAOSwmLlX4i36

best 73s
José
CT1FKN